2020 AUDI A8 sensor

4N0012721BD
Driver assistance

Distance warning
Applies to: vehicles with distance warning
S|
S|
| |
4%

Fig. 136 -Applies to: vehicles with adaptive cruise assist-
Instrument cluster Display of current distance

Fy a 2
E
Fig. 137 -Applies to: vehicles with adaptive cruise assist:-
Instrument cluster: distance warning
General information
At speeds above approximately 40 mph (65
km/h), this function measures the distance to the
vehicle ahead as time. If the distance falls below
the warning threshold, the system warns you of
the hazard with the [J indicator light.
Image in the Driver assistance display
Applies to: vehicles with adaptive cruise assist
The display only appears if the Driver assistance
display is selected on the on-board computer
=> page 16 and the adaptive cruise assist is not
actively controlling the vehicle.
@ Detected vehicle driving ahead
@ Use the markings to help you estimate the
distance to an obstacle. Each marking repre-
sents approximately one second.
@) Set warning threshold. Depending on the set-
tings, the display will be colored in from the
bottom to the top.
@ You will be warned as soon as you fall below
the set distance.
Adjusting the distance warning
The system can be switched on and off in the
MMI page 157.
You can adjust the distance warning threshold to
your preferences. The settings depend on the ve-
hicle equipment.
— Applies to: MMI: Select on the home screen:
VEHICLE > Driver assistance > (<3) > Distance
warning.
Messages
rg or 3!-| is displayed when there is a malfunc-
tion, the distance warning functions may be un-
available or may be limited.
A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors > page 156, fig. 117 and try to turn on
the systems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.

ZA WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
G) Tips
— The driver is always responsible for adhering
to the regulations applicable in the country
where the vehicle is being operated.
— You may fall below the warning threshold
briefly when passing or when quickly ap-
proaching a vehicle driving ahead. There is
no warning in this scenario. A warning is giv-
en only if you fall below the warning thresh-
old for an extended period of time.

179

Driver assistance

Lane departure warning
(erreur laced)
Applies to: vehicles with lane departure warning
The lane departure warning can detect lane
marker lines within the limits of the system. If
you are approaching a detected lane marker and
it appears likely that you will leave the lane, the
system can warn you with corrective steering and
a steering wheel vibration, if necessary.
The system functions in the speed range of ap-
proximately 40 mph - 155 mph (65 km/h -
250 km/h).
Applies to: vehicles with lane departure warning
and without side assist: The system will not warn
you before crossing a lane marker line if you have
activated the turn signal. In this case, it assumes
that you are changing lanes intentionally.
Applies to: vehicles with lane departure warning
combined with side assist: A noticeable corrective
steering movement will occur briefly before the
vehicle exits the lane if the turn signal is activat-
ed, the lane departure warning is ready, anda
lane change has been classified as critical by the
system due to vehicles traveling beside you or
due to approaching vehicles. This will attempt to
keep your vehicle in the lane.

ZA\ WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.


YD In certain countries
180

Applies to: vehicles with lane departure warning

B8V-0692


Fig. 138 Turn signal lever: switching the lane departure
warning on and off
RAZ-0107
Fig. 139 Instrument cluster: driver assistance display
Switching the lane departure warning on and
off
The lane departure warning switches on auto-
matically once the ignition is switched on )).
> To switch the system on or off, press the button
> fig. 138. The respective indicator light in the
instrument cluster will turn off or on.
Display and warning
The availability and readiness to provide warn-
ings will be indicated with the HL Hi indicator
lights.
Corrective steering will be indicated with the Hi
indicator light. If the lane departure warning
must intervene for a long period of time, a mes-
sage will request the driver to drive in the center
of the lane.
You can also open the Driver assistance display in
the on-board computer > page 16. The display
matches the functions of the indicator lights. >

4N0012721BD
Driver assistance




Display or in- | Meaning on the corresponding
dicator light side
@ White The lane departure warning is
lines switched on but not ready to pro-
vide warnings.
@ Green Lane departure warning is
line switched on and ready to provide
warnings on that side.
@ Red The lane departure warning will
line warn you with corrective steering
before exiting the lane.
The steering wheel can also vi-
brate to warn you if lane bounda-
ries are detected during a pass-
ing maneuver.

The lane departure warning is ready to provide
warnings if an object is detected on at least one
side of the individual lane.
If the Hi indicator light turns on, the lane depar-
ture warning is not ready to provide warnings.
This may be due to the following reasons:
— The necessary lane marker lines have not been
detected (for example, in a construction zone
or because the lines are obstructed by snow,
dirt, water, or lighting)
— The speed is below the activation speed
— The lane is too narrow or too wide
— The curve is too narrow
— The driver's hands are not on the steering
wheel
— Visibility is obstructed by a rise or dip.
Steering intervention request
If no steering activity is detected or the steering
power from the system is not sufficient, the driv-
er steering intervention request will alert the
driver using audio and visual signals. Take over
the steering and keep your hands on the steering
wheel so that you will be ready to steer at any
time. The system will become inactive after a
short time and will only be active again later.
If the driver does not take over steering, the lane
departure warning will be switched off. If the ve-
hicle is equipped with emergency assist and it is
ready to function, it will be activated > page 190.
ZA WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
— The system warns the driver that the vehicle
is leaving the lane using corrective steering.
The
driver is always responsible for keeping
the vehicle within the lane.
— Corrective steering may not occur at all in
certain situations, such as during heavy
braking. Always be ready to intervene.

(i) Tips
— Always keep your hands on the steering
wheel. The driver is always responsible for
adhering to the regulations applicable in
the country where the vehicle is being oper-
ated.
— The system does not provide any corrective
steering or steering wheel vibrations if it de-
tects that you are passing another vehicle.
Ode mM Ke lad Claire)
Applies to: vehicles with lane departure warning
You can switch the optional steering wheel vibra-
tion warning for the lane departure warning on
and off. The settings depend on the vehicle
equipment.
— Applies to: MMI: Select on the home screen:
VEHICLE > Driver assistance > (<3) > Lane de-
parture warning > Vibration warning.
@ Tips
Certain settings are stored automatically in
the active personal profile.
Applies to: vehicles with lane departure warning
ry or is displayed when there is a malfunc-
tion, the lane departure warning and lane guid-
ance functions of the adaptive cruise functions
may be unavailable or limited.
A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or the
181
>

Driver assistance

camera may be covered. Clean the area in front of
the camera > page 156, fig. 118 and try to turn
on the systems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.
Audi pre sense
Introduction
Applies to: vehicles with Audi pre sense
Within the limits of the system, the Audi pre
sense functions can initiate measures in certain
driving situations to protect the vehicle occu-
pants and other road users. Depending on the ve-
hicle equipment, various Audi pre sense systems
may
be installed:
— Audi pre sense basic can react during emergen-
cy and dangerous braking maneuvers and un-
stable driving situations (such as oversteering
or understeering).
— Audi pre sense front”) can detect an impending
frontal impact and react with warnings, braking
interventions, and preemptive safety measures
for the vehicle occupants.
— Audi pre sense rear monitors the rear traffic
behind your vehicle and can react to an impend-
ing rear impact.
— Audi pre sense side can detect an impending
side impact from cross-traffic and vehicles com-
ing from the side, and can initiate preemptive
safety measures.
— The swerve assist can assist during an evasive
maneuver recognized as critical with steering
movement and by braking individual wheels in-
dividually.
— The turn assist can detect vehicles in the oppo-
site lane and react with braking maneuvers.

D_ This is not available in some countries.
182
Audi pre sense preemptive safety measures
Applies to: vehicles with Audi pre sense
Depending on the vehicle speed and the vehicle
equipment, the following functions may be initi-
ated in certain situations:
— Visual and audio warnings
— Activation of the emergency flashers)
— Reversible tensioning of safety belts
— Closing the windows and panoramic glass roof
— Adjusting the seats
— Other preemptive safety measures by individual
systems

ZA WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
(i) Tips
— Depending on the risk situation that is de-
tected and the selected Audi drive select*
mode, not all preemptive safety measures
may be initiated under certain circumstan-
ces. Certain functions can be adjusted or
skipped if necessary.
— Audi pre sense may be restricted or unavail-
able under certain circumstances, for exam-
ple if:


— There are passengers with unfastened
safety belts
— It has only been several seconds since the
ignition was switched on The ndicator
light turns on.
— When driving in reverse

— There is an airbag control module mal-
function
— System functions may not be available if
the ESC is limited or switched off, or if
there is a malfunction.

4N0012721BD
Driver assistance

Audi pre sense basic
Applies to: vehicles with Audi pre sense basic
Audi pre sense basic is automatically active at
speeds of approximately 20 mph (30 km/h) and
higher. Audi pre sense basic can trigger the Audi
pre sense preemptive safety measures during
emergency braking and dangerous braking ma-
neuvers as well as in unstable driving situations,
such as oversteering or understeering.

Z\ WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
Audi pre sense front
Applies to: vehicles with Audi pre sense front

The Audi pre sense front uses the data from the
camera and calculates the probability of a rear-
end collision. Within the limits of the system, an
impending frontal impact with vehicles, pedes-
trians), or cyclists!) may be detected in both ur-
ban and rural speed ranges.
Audi pre sense front is active at speeds of approx-
imately
6 mph (10 km/h) and higher. It can react
to pedestrians”) or cyclists!) at speeds up to ap-
proximately 50 mph (85 km/h), and can react to
vehicles at speeds up to approximately 155 mph
(250 km/h).
Early warning/acute warning
The system can recognize various dangerous sit-
uations. The early warning occurs if:
— A vehicle driving ahead brakes suddenly
— Your own vehicle approaches a vehicle in front
of you that is traveling at a significantly slower
speed or that is stationary
—A pedestrian or cyclist!) is standing in the lane
or is moving into the lane
The message Audi pre sense [J and a warning
tone will warn you about the danger.
The brakes may also be applied as an acute warn-
ing when there is an impending collision. You will

D_ This is not available in some countries.
also be warned by an indicator in the instrument
cluster display. When this warning occurs, it may
only be possible to avoid a collision by swerving
or braking strongly.
Automatic deceleration
If you do not react to the acute warning, Audi pre
sense front can brake the vehicle to a full stop
within the limits of the system )). This reduces
the vehicle speed in the event of a collision.
Automatic braking force increase
If Audi pre sense determines that you are not
braking strongly enough when a collision is immi-
nent, it can increase the braking force based on
the
situation.
Take-over
If the message Bo Please take over! appears, the
vehicle has been braked to a stop by Audi pre
sense and you must resume control of the vehi-
cle.

ZX WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
— Audi pre sense front cannot overcome natu-
ral physical laws. It is a system designed to
assist and it cannot prevent a collision in ev-
ery circumstance. The driver must always in-
tervene. The driver is always responsible for
braking at the correct time. Do not let the
increased safety provided tempt you into
taking risks. This could increase your risk of
a collision.
— Audi pre sense front does not react to cer-
tain objects, such as animals, crossing or on-
coming vehicles, bars, railings, or railcars.
— Audi pre sense front may be limited or un-
available when driving in curves.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Store objects securely while
driving.

183

Driver assistance

Audi pre sense rear
Applies to: vehicles with Audi pre sense rear
Within the limits of the system, Audi pre sense
rear uses data from radar sensors in the rear area
of the vehicle and calculates the probability of a
rear-end collision with the vehicle behind you.
Audi pre sense preemptive safety measures can
be initiated if the risk of a collision with the vehi-
cle behind you is detected.

ZA\ WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
— Audi pre sense rear does not react to pedes-
trians, animals, crossing objects, and ob-
jects not detected as vehicles.
@) Tips
Audi pre sense rear functions may also switch
off if there is a malfunction in the side assist
system.
Audi pre sense side
Applies to: vehicles with Audi pre sense side

Audi pre sense side uses data from the extra ra-
dar sensors installed in the front and rear areas
of the vehicle, and other sensors can react to side
impacts from cross-traffic and vehicles coming
from the side.
Audi pre sense side is active at speeds up to ap-
proximately 35 mph (60 km/h). The Audi pre
sense preemptive safety measures can be trig-
gered when a collision risk is detected.
Depending on the situation, the suspension may
be lifted* on the side facing the accident.

Z\ WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.


) In preparation at the time of printing. The speed range
may be within approximately 30 mph - 90 mph (50 km/h -
150 km/h) depending on the vehicle production date.
184

— Audi pre sense side does not react to pedes-
trians, animals, and objects not detected as
vehicles.
G) Tips
— The suspension lift* only occurs when the
ignition is switched on, the doors and lug-
gage compartment lid are closed, and if the
vehicle has been driven faster than 3 mph (5
km/h) at least once since the ignition was
switched on.
— The Audi pre sense side functions may also
switch off if there is a malfunction in the in-
tersection assistant”.
Applies to: vehicles with swerve assist

The swerve assist can help you to steer the vehi-
cle around an obstacle detected in a critical area.
If you avoid an obstacle after the acute warning,
then swerve assist assists you by specifically
braking individual wheels and applying slight
steering adjustment to correct the steering
wheel angle as long as you are actively steering.
The swerve assist is available at speeds between
approximately 20 mph and 90 mph (30 km/h -
150 km/h) ».

ZA WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
— Swerve assist does not react to pedestrians,
animals, crossing objects, and objects not
detected as vehicles.

(i) Tips
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.
—An indicator in the instrument cluster will
inform you when there is an intervention.

4N0012721BD
Driver assistance

Turn assist
Applies to: vehicles with turn assist
When your vehicle is turning
The turn assist can assist you with a braking in-
tervention when starting to drive or when driving
slowly, to reduce the risk of your vehicle colliding
with an oncoming vehicle when you are making a
left turn). The braking intervention causes your
vehicle to stay in its lane. The function is only
available when the turn signal is turned on and at
speeds up to maximum of 6 mph (10 km/h).

ZA WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 154.
— The turn assist does not react to pedes-
trians, animals, crossing objects, and ob-
jects not detected as vehicles.
@ Tips
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.
— An indicator in the instrument cluster will
inform you when there is an intervention.
Adjusting Audi pre sense
Applies to: vehicles with Audi pre sense

The system can be switched on and off in the
MMI & page 157.
You can adjust the Audi pre sense functions to
your preferences. The settings depend on the ve-
hicle equipment.
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > (<3) > Audi pre
sense.
Possible settings:
— Turn assist
— Swerve assist

2) When making a right turn in countries with left-hand drive
vehicles.
2) In certain countries
Prewarning~ - The prewarning can be switched
off or the Audi pre sense warning time can be set
(Early/Medium/Late).
Set the warning time for the early warning to
Early at first. If you feel that the prewarnings ap-
pear too early, then set the warning time to Me-
dium. The Late warning time should only be set
in special circumstances.
@) Tips
— Switch Audi pre sense off when you are not
using public streets, when loading the vehi-
cle onto a vehicle carrier, train, ship, or oth-
er type of transportation, or when towing
the vehicle. This can help to prevent an un-
desired intervention from the Audi pre
sense system.
— If the system is switched off, it switches on
again automatically once the ignition is
switched on again”).
— Certain settings are stored automatically in
the active personal profile.
tLe [Ly
Applies to: vehicles with Audi pre sense
re or s displayed when there is a malfunc-
tion, the Audi pre sense functions may be un-
available or may be limited.

A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors > page 156, fig. 117, > page 156,
fig. 118 and try to turn on the systems again lat-
er.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.
185

Driver assistance

Side assist
Description
Applies to: vehicles with side assist
al 3 3 q
e|


Fig. 140 Diagram: driving situations and displays in the ex-
terior mirror (example)
General information
Side assist monitors the blind spot and traffic in
the adjacent lanes behind the vehicle. Within sys-
tem limits, side assist can detect traffic that is
approaching from behind and provide a warning
when you are changing lanes and turning. The
system uses the data from the radar sensors at
the rear corners of the vehicle.
The side assist is active at walking speeds and
higher. If an object that is classified as critical is
approaching, the display in the exterior mirror @)
on the corresponding side of the vehicle will light
up.
Driving situations
The system can provide warnings about the fol-
lowing risks:
@ Approaching vehicles: a vehicle may be clas-
sified as critical in some cases, even if it is
farther away. The faster a vehicle ap-
proaches, the sooner the display will turn on.
186
@ Vehicles traveling in the same direction: the
display will turn on if vehicles traveling in the
same direction as your vehicle are classified
as critical. The side assist warns you of all de-
tected vehicles when they are in the “blind
spot” or before they reach that point.
@® Vehicles you are passing: the display only
turns on if you slowly pass a detected vehicle
(difference in speed between the two vehicles
is less than 9 mph (15 km/h)). There is no
display if you pass a vehicle more quickly.
Information stage
At the information level, the side assist informs
you of detected objects that are classified as criti-
cal. This is even possible when your vehicle is sta-
tionary and the turn signal is turned on, so that
the system can also assist you when turning.
From speeds of approximately 6 mph (10 km/h)
and higher, the system will warn you of detected
objects that are classified as critical, even if the
turn signal is not turned on.
The display remains dim in the information stage
so that you are not distracted while looking for-
ward.
Warning stage
If you activate a turn signal and the display flash-
es brightly, side assist is warning about objects
that have been classified as critical.
Depending on the vehicle equipment and other
driver assistance systems, the display may also
flash if you have not activated a turn signal. If
you are approaching a detected lane marker line
and it appears you will be leaving the lane, the
display will warn you about detected vehicles
that are classified as critical. You can also be
warned with corrective steering > page 180,
Lane departure warning.
Detection range
The radar sensors are designed to detect the left
and right adjacent lanes when the road lanes are
the normal width. In some situations, the display
may turn on even though there is no vehicle lo-
cated in the area that is critical for a lane change.
For example: